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https://issues.apache.org/jira/browse/HIVE-20150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Zhang reassigned HIVE-20150:
------------------------------------
Assignee: Richard Zhang (was: Krisztian Kasa)
> TopNKey pushdown
> ----------------
>
> Key: HIVE-20150
> URL: https://issues.apache.org/jira/browse/HIVE-20150
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Affects Versions: 4.0.0
> Reporter: Teddy Choi
> Assignee: Richard Zhang
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-20150.1.patch, HIVE-20150.10.patch,
> HIVE-20150.11.patch, HIVE-20150.11.patch, HIVE-20150.2.patch,
> HIVE-20150.4.patch, HIVE-20150.5.patch, HIVE-20150.6.patch,
> HIVE-20150.7.patch, HIVE-20150.8.patch, HIVE-20150.9.patch
>
>
> TopNKey operator is implemented in HIVE-17896, but it needs more work in
> pushdown implementation. So this issue covers TopNKey pushdown implementation
> with proper tests.
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